BA4908 Datasheet, PDF (1/3 Pages) Rohm – System Regulator for Car Stereo

03W201A
System Regulator for Car Stereo
BA4908
Description
BA4908 is a system regulator IC for car stereo.
This IC incorporates 1 channel of 5.6V output,
2 channels of 8.7V output and 2 channels of
high side switch.
Dimension (Unit : mm)
29.8 ± 0.2
24.0 ± 0.1
4.7 ± 0.2
R1.8
Features
1) PNP output and low drop out type (Except AMP and ANT)
2) Built-in output current limit circuit to protect IC from
destruction by short
3) Built-in over-voltage protection circuit to deliver strong
design for surge input to BACK UP and Vcc
4) 12 pin power package perfect for space saving design
5) Built-in thermal protection circuit to protect IC from
thermal destruction
1
2.54
12
0.6
1.2
0.4 ± 0.1
SIP-M12
Applications
Car stereo
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Limits
Unit
Power supply voltage
Vcc
Power dissipation
Pd
24
V
3000 ^∗
mW
Operating temperature range ^Topr
-30 ~ +85
˚C
Storage temperature range
Tstg
-55 ~ +150
˚C
∗Derating : 27.2mW/˚C for operation above Ta=25˚C
Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol Min.
Typ. Max.
Unit
Recommended supply voltage Vcc
10
13.2
16
V
Operating voltage range
Vcc
6.3
13.2
24
V
∗Electric characteristic is not guaranteed. (Especially at low input voltage)